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PlantFiles: Mojave Mound Cactus, Giant Claret Cup, Salmon-flowered Hedgehog, Spiny Hedgehog
Echinocereus polyacanthus subsp. pacificus

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Echinocereus (ek-in-oh-KER-ee-us) (Info)
Species: polyacanthus subsp. pacificus

Synonym:Cereus phoeniceus var. pacificus
Synonym:Echinocereus pacificus
Synonym:Echinocereus polyacanthus var. pacificus
Synonym:Echinocereus triglochidiatus var. pacificus
Synonym:Echinocereus mombergerianus

One member has or wants this plant for trade.

Category:
Cactus and Succulents

Height:
under 6 in. (15 cm)
6-12 in. (15-30 cm)

Spacing:
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Orange

Bloom Time:
Late Winter/Early Spring
Mid Spring

Foliage:
Unknown - Tell us

Other details:
Drought-tolerant; suitable for xeriscaping
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From woody stem cuttings
Allow cut surface to callous over before planting
From seed; direct sow after last frost

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Properly cleaned, seed can be successfully stored

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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Xenomorf On May 11, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

This plant (and subspecies) can form clumps with as many as 400 heads
The 'polyacanthus' subspecies has smaller flowers being only 1.2 to 2.8 inches across. This is the most common of these subspecies.
The 'acifer' subspecies has scarlet red flowers that are 2.4 to 3.1 inches across and the stigma having 9 or 10 lobes.
The 'huitcholensis' subspecies has narrow salmon-pinkish orange blooms that are 1.8 to 3.1 inches across.
The 'pacificus' subspecies has smaller flowers than the other 3 subspecies being only 1.2 inches long and bright orange.

More synonyms of this plant are: Echinocereus polyacanthus subsp. mombergerianus & Echinocereus pacificus subsp. mombergerianus

Regional...

This plant has been said to grow in the following regions:

Chandler, Arizona



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